My stomach always felt like crap when I took any protein or amino drinks 1st thing in the morning specially when I had stomach issues (gastritis) but then I switched it up and starting eating a solid...

Sheesh aint bad when i was 20 i was like 115 lbs ... but gotta EAT EAT specially whole foods and clean not sugary and get yourself a weightgainer (my fav of all times ON PRO COMPLEX) and bust ya ass...